<%@ page language="java" contentType="text/html; charset=UTF-8" pageEncoding="UTF-8"%>
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
<title>Insert title here</title>
</head>
<body>
	<div style="text-align: center;">
		<h1>
			<%
				int port = request.getLocalPort();
				String sessionid = request.getSession(true).getId();
				out.print(port + "=" + sessionid);
			%>
		</h1>
	</div>
	<%
		out.print("before clear :" + session.getAttribute("USER_") + "<br/>");
		session.removeAttribute("USER_");
		out.print("after clear :" + session.getAttribute("USER_") + "<br/>");
	%>
</body>
</html>